Glen Ogle Viaduct loop - via The Three Saints way

The trail is particularly beautiful in autumn when the trees display vibrant colors. However, the smooth railway path section is enjoyable year-round. Be aware that the return leg, especially on the Old Military Road, can be very wet and boggy in colder or wetter months, so proper footwear is essential.

The route offers a 'walk of two contrasting halves'. The outward journey often follows a disused railway line, which is generally smooth with a mix of tarmac and good-quality gravel, featuring a gentle gradient. However, the initial climb from Lochearnhead can be steep and muddy. The return leg, particularly if using the Old Military Road path, is significantly rougher, boggy, overgrown, and can be very wet with natural obstacles.

The section along the old railway line (part of NCN 7) is considered easy and suitable for all abilities, including families, and is even pram-friendly in parts. However, the full circular loop, especially if it includes the Old Military Road, is rated as moderate to hard due to rougher, boggy paths and a steep initial ascent. For a full loop, it's best for those with some hiking experience and proper gear.

Parking is typically available in Lochearnhead, which serves as a common starting point for the loop. Arriving earlier in the day is advisable, especially during peak seasons, to secure a spot.

Yes, dogs are generally welcome on the trail. However, as parts of the route pass through rural and potentially livestock areas, it's always best to keep dogs under close control, preferably on a leash, to ensure their safety and respect for wildlife and other trail users.

You'll encounter breathtaking panoramic views across Glen Ogle and Loch Earn. Key highlights include the iconic 19th-century Glen Ogle Viaduct, a view of Glen Ogle Viaduct, and a view of Loch Earn. You might also spot beaver activity near Lochearnhead and a painted cow sculpture in Lochearnhead.

Yes, the route incorporates sections of several well-known paths. It follows significant portions of the Three Saints Way, the Rob Roy Way, and the National Cycle Network 7 (NCN 7). You'll also find smaller sections of the Glen Ogle Trail and the historic Old Military Road.

No, there are generally no permits or entrance fees required for hiking on public access routes within Loch Lomond and The Trossachs National Park, including the Glen Ogle Viaduct loop. However, always follow the Scottish Outdoor Access Code.

The area is a haven for bird watchers, with species like golden eagles, red kites, and peregrine falcons calling it home. You might also spot other local wildlife, including evidence of beaver activity near Lochearnhead.

Lochearnhead, the typical starting point for the loop, offers options for cafes and pubs where you can refuel before or after your hike. It's a good idea to check opening times, especially outside of peak season.

For a less challenging experience, consider hiking the outward journey along the old railway line (NCN 7) as an out-and-back route. This section is smoother and offers fantastic views without the rougher, boggy conditions of the full circular return leg on the Old Military Road. If doing the full loop, ensure you have sturdy, waterproof footwear.